Electron-Phonon Interaction in Conventional and Unconventional Superconductors

Nonfiction, Science & Nature, Technology, Superconductors & Superconductivity, Science, Physics, Thermodynamics
Cover of the book Electron-Phonon Interaction in Conventional and Unconventional Superconductors by Pegor Aynajian, Springer Berlin Heidelberg
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Pegor Aynajian ISBN: 9783642149689
Publisher: Springer Berlin Heidelberg Publication: January 19, 2011
Imprint: Springer Language: English
Author: Pegor Aynajian
ISBN: 9783642149689
Publisher: Springer Berlin Heidelberg
Publication: January 19, 2011
Imprint: Springer
Language: English

The problem of conventional, low-temperature superconductivity has been regarded as solved since the seminal work of Bardeen, Cooper, and Schrieffer (BCS) more than 50 years ago. However, the theory does not allow accurate predictions of some of the most fundamental properties of a superconductor, including the superconducting energy gap on the Fermi surface. This thesis describes the development and scientific implementation of a new experimental method that puts this old problem into an entirely new light. The nominee has made major contributions to the development and implementation of a new experimental method that enhances the resolution of spectroscopic experiments on dispersive lattice-vibrational excitations (the "glue" responsible for Cooper pairing of electrons in conventional superconductors) by more than two orders of magnitude. Using this method,he has discovered an unexpected relationship between the superconducting energy gap and the geometry of the Fermi surface in the normal state, both of which leave subtle imprints in the lattice vibrations that could not be resolved by conventional spectroscopic methods. He has confirmed this relationship on two elemental superconductors and on a series of metallic alloys. This indicates that a mechanism qualitatively beyond the standard BCS theory determines the magnitude and anisotropy of the superconducting gap.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

The problem of conventional, low-temperature superconductivity has been regarded as solved since the seminal work of Bardeen, Cooper, and Schrieffer (BCS) more than 50 years ago. However, the theory does not allow accurate predictions of some of the most fundamental properties of a superconductor, including the superconducting energy gap on the Fermi surface. This thesis describes the development and scientific implementation of a new experimental method that puts this old problem into an entirely new light. The nominee has made major contributions to the development and implementation of a new experimental method that enhances the resolution of spectroscopic experiments on dispersive lattice-vibrational excitations (the "glue" responsible for Cooper pairing of electrons in conventional superconductors) by more than two orders of magnitude. Using this method,he has discovered an unexpected relationship between the superconducting energy gap and the geometry of the Fermi surface in the normal state, both of which leave subtle imprints in the lattice vibrations that could not be resolved by conventional spectroscopic methods. He has confirmed this relationship on two elemental superconductors and on a series of metallic alloys. This indicates that a mechanism qualitatively beyond the standard BCS theory determines the magnitude and anisotropy of the superconducting gap.

More books from Springer Berlin Heidelberg

Cover of the book Laser Spectroscopy 2 by Pegor Aynajian
Cover of the book Spiele, Rätsel, Zahlen by Pegor Aynajian
Cover of the book IT Quality Management by Pegor Aynajian
Cover of the book Topics in Dental Biochemistry by Pegor Aynajian
Cover of the book Clinical Atlas of Skin Tumors by Pegor Aynajian
Cover of the book AIME 87 by Pegor Aynajian
Cover of the book Modern Cryptography Primer by Pegor Aynajian
Cover of the book Biosystems Engineering II by Pegor Aynajian
Cover of the book Liposome Dermatics by Pegor Aynajian
Cover of the book Controversial Pain Syndromes of the Arm by Pegor Aynajian
Cover of the book Behavioral Neurobiology of Huntington's Disease and Parkinson's Disease by Pegor Aynajian
Cover of the book Coaching by Pegor Aynajian
Cover of the book Natural Products in Cancer Prevention and Therapy by Pegor Aynajian
Cover of the book Formation and Cooperative Behaviour of Protein Complexes on the Cell Membrane by Pegor Aynajian
Cover of the book Atlas of Bone Scintigraphy in the Pathological Paediatric Skeleton by Pegor Aynajian
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy